BTS, the biggest K-pop group in the world, performing at the 2018 Billboard Music Awards in Las Vegas. The global success of groups like BTS is spurring a huge number of South Korean teenagers to strive for similar stardom. Photo: AFP

BTS, the biggest K-pop group in the world, performing at the 2018 Billboard Music Awards in Las Vegas. The global success of groups like BTS is spurring a huge number of South Korean teenagers to strive for similar stardom. Photo: AFP